What are the first aid equipment that must be equipped to enter the confined space

1, into the restricted space before the operation, effectively do a good job of process processing. Pipes and valves connected to the operating system plus blind disconnect, plus, take the blind to have a person in charge. For the production, storage, transportation of flammable and explosive, toxic and hazardous materials, equipment, containers, should first cut off the source of materials and add a good blind, the blind should be used in line with the pressure level of the official blind, can not be used as a substitute for white iron, asbestos sheet and other materials blind. This issue of "Alarm bells ringing" reported the polypropylene reactor explosion, is because the propylene feed valve is not installed blind isolation caused by the 2, the sampling and analysis of the restricted space to be representative and comprehensive. A device to take more than a few points of the sample, such as towers, at least should be measured on, in, under 3 points; tanks should be in the material import and export and the center; horizontal container is best to take the two ends. Sampling as far as possible to reach the interior of the equipment, the sample is representative, not in the manhole sampling, manhole due to air convection sampling is not representative. Only when the combustible gas concentration, oxygen content and toxic content of any part of the confined space are qualified, can enter the confined space operation license. 3, before entering the confined space operation, the guardian and the operator must be familiar with the escape route and rescue methods in case of emergency. The operation site should be equipped with a certain number of life-saving facilities and fire extinguishing equipment in accordance with the regulations. There should be no obstacles inside or outside the entrances and exits of the equipment to ensure that it is unobstructed and easy for people to enter and exit and rescue and evacuation.4. Safe voltage and safe traveling lights should be used for entering the restricted space operation. Containers, equipment, high temperature, high humidity, the human body is easy to sweat, it will increase the occurrence of human electrocution. Into the metal container (furnace, tower, kettle, tanks, etc.) and particularly wet, narrow workplace non-metallic container operations, lighting voltage is not greater than 12V; when the need to use power tools or lighting voltage greater than 12V, should be installed in accordance with the provisions of the leakage protector, its junction box (board) must be placed on the outside of the container; wires and cables can not be broken and exposed places; operators should wear anti-static clothing, the use of 5, with the agitator and other rotating parts of the equipment, should be shut down after the shutdown cut off the power supply, remove the insurance, and in the switch on the "someone is working, forbidden to close the gate" warning sign, if necessary, remove the rotating parts and the coupling connected to the motor. 6, into the restricted space operation, shall not be used to transport the operators such as winches, cranes, etc., the tools, materials, and equipment carried by the operators shall not be used. The tools and materials carried by the operators shall be registered. After the operation is finished, carry out a comprehensive inspection to confirm that there is no error before delivery and acceptance. 7. Natural ventilation can be used in the restricted space of the operation. If necessary, ventilation fan and blower can be used to force air or air, but it is strictly prohibited to charge oxygen into the space. Into the restricted space operators should not work too long each time, especially the higher temperature of the container operation, the corrosion of the container operation, an operation time of no more than 30 minutes is appropriate. 8, the greater danger of entering the restricted space operations, such as catalytic device coking, reaction kettle overhaul, large tanks, such as artificial tank cleaning, the operating unit before the operation must be developed in more detail to operate the safety program and emergency plan, and report to the unit safety plan. Emergency plan, and reported to the unit safety management department for approval before the operation. 9, there are people poisoning, asphyxiation emergency, the rescue personnel must wear isolated protective masks to enter the equipment, and at least one person in the outside to do the liaison work. When an accident occurs, the rescue work should be scrambling for time and seconds, but the accident must be handled calmly and correctly. Must not be delayed, not to mention blind rescue. Rescuers should first protect themselves, only to protect themselves well, in order to rescue others more effectively. Otherwise, it will be counterproductive, not only can not save others, but also will bury their own lives.